62 
FISHES. 
CHjETODON VINCTUS. 
Chat. Jlavus • fascia oculari brunned, maculaque ad latus nigra , ca. ruleo marginatis j vittis duabus obliquis, pinnam 
pectoralem antice cingentibus, carulescentibus. 
PLATE XVII. FIG. 1. 
Hah. in Oceano Pacifico, apud Byam Martin Island. 
Of the present species, obtained in the same locality as the two preceding, our only knowledge 
is derived from Mr. Smyth’s drawing. The markings of the fish, as there represented, are such as to 
leave no doubt of its constituting a new species, bearing some relation to the Chat, unimaculatus, 
Bloch, but differing from the representation given in his Ichthyology (pi. 201, f. 1), by its much 
smaller comparative depth; its bright yellow colour; the white termination of its even caudal fin; 
the absence of a dark margin to the soft parts of the dorsal and anal fins ; the pale blue borders to the 
fascia that crosses the eye; the blue iris surrounding the large black pupil on the side ; and lastly, by 
the very peculiar marking connected with the pectoral Jin, and lower part of the sides. This consists 
of two blue vitta, commencing apparently just above the angle of the operculum: the upper passes 
backwards, in an oblique curve, above the base of the pectoral fin, and terminates at the base of the 
anal fin, at about the middle of its soft part ; the lower, forming at first a right angle with the com- 
mencement of the upper, descends directly downwards to the base of the pectoral fin, round which 
it passes on the under side, and then proceeds obliquely, and parallel with the upper vitta, to the base 
of the spinous portion of the anal fin. 
The marking just described has suggested the idea of a ligature surrounding and restraining the 
anterior limbs, which is alluded to in the trivial name which we have given to the species. * 
The figure, like that of the other species represented in the same plate, is stated to be two-thirds 
of the natural size. 
Heniochus chrysostomus. 
Hen. candescent i-albidus, f asciis tribus lads saturate fuscis, prima post-oculari, secundd media, tertia basin posticam 
pinnce dorsalis includente ; orefulvo. 
PLATE XVIII. FIG. 1. 
Chtetodon chrysostomus. Sol. MSS. 
“ Pe-ue, vel Peuwe.” Tatehi. 
“ Tatahe. Peooe.” Sol. MSS. 
Hab. apud Tahiti. 
This fish is known to us, as connected with the expedition, only by a drawing made by 
Mr. Beechey; a drawing which we communicated to M. Cuvier, with the manuscript name of 
Hen. permutatus. On consulting, however, the collection of figures preserved by Sir Joseph Banks, 
we find one of this species, fully confirming, as to general effect, the drawing before us. In 
Dr. Solander’s MSS. the name of Chatodon chrysostomus is assigned to it ; and it is thus described : 
“ Piscis rliombeus albus fasciis tribus latis (tam latae sunt ut dimidium corporis tegunt), obliquis 
nigricantibus ; prima per occiput, pone oculos, per basin pinnarum pectoralium, ad pectus ducta ; 
secunda, caeteris latior, paulo pone medium piscis ; tertia, in parte postic& dorsi secundum basin 
posteriorem pinnae dorsalis. 
“ Os fulvum. 
“ Iris argenteo-flavicans. Pupilla nigra. 
“ In Pinna dorsali fascia media antice extenditur; pars postica lutescens. 
“ Pinna pectorales lutescentes. 
“ Pinna ventrales nigerrimae. 
“ In pinna ani fascia media extenditur ut ilia tantummodo antice et postice albida, 
“ Pinna caudalis lutescens. 
